VCV000093719.39 - ClinVar

NM_001360.3(DHCR7):c.438T>C (p.Asn146=)

Germline

Classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

(16)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Benign

criteria provided, multiple submitters, no conflicts

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_001360.3(DHCR7):c.438T>C (p.Asn146=)

Variation ID: 93719 Accession: VCV000093719.39

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 11q13.4 11: 71441415 (GRCh38) [ NCBI UCSC ] 11: 71152461 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	Oct 2, 2016	Sep 29, 2024	Feb 1, 2024

HGVS

Nucleotide	Protein	Molecular consequence
NM_001360.3:c.438T>C MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_001351.2:p.Asn146=	synonymous
NM_001163817.2:c.438T>C	NP_001157289.1:p.Asn146=	synonymous
NC_000011.10:g.71441415A>G
NC_000011.9:g.71152461A>G
NG_012655.2:g.12017T>C
LRG_340:g.12017T>C
LRG_340t1:c.438T>C	LRG_340p1:p.Asn146=

... more HGVS ... less HGVS

Protein change

Other names

p.Asn146Asn

Canonical SPDI

NC_000011.10:71441414:A:G

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

0.19269 (A)

Allele frequency Help The frequency of the allele represented by this VCV record.

1000 Genomes Project 0.80731

1000 Genomes Project 30x 0.80746

Trans-Omics for Precision Medicine (TOPMed) 0.88523

The Genome Aggregation Database (gnomAD) 0.90629

NHLBI Exome Sequencing Project (ESP) Exome Variant Server 0.90999

Links

ClinGen: CA147249 dbSNP: rs949177 VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
DHCR7		-	-	GRCh38 GRCh37	938	953

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
not specified	Benign (4)	criteria provided, multiple submitters, no conflicts	Jun 6, 2018	RCV000079654.29
Smith-Lemli-Opitz syndrome	Benign (9)	criteria provided, multiple submitters, no conflicts	Feb 1, 2024	RCV000355894.36
Inborn genetic diseases	Benign (1)	criteria provided, single submitter	Mar 11, 2016	RCV002311597.9
not provided	Benign (2)	criteria provided, multiple submitters, no conflicts	Mar 3, 2015	RCV001705740.9

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	More information Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Benign (-)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	NOT SPECIFIED Affected status: unknown Allele origin: germline	PreventionGenetics, part of Exact Sciences Accession: SCV000307647.1 First in ClinVar: Oct 02, 2016 Last updated: Oct 02, 2016
Benign (May 08, 2017)	criteria provided, single submitter (Athena Diagnostics Criteria) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: germline	Athena Diagnostics Accession: SCV000677272.1 First in ClinVar: Dec 06, 2016 Last updated: Dec 06, 2016
Benign (Oct 10, 2014)	criteria provided, single submitter (ACGS Guidelines, 2013) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: yes Allele origin: germline	Genome Diagnostics Laboratory, University Medical Center Utrecht Study: VKGL Data-share Consensus Accession: SCV000743879.1 First in ClinVar: Apr 19, 2018 Last updated: Apr 19, 2018
Benign (Jun 06, 2018)	criteria provided, single submitter (EGL ClinVar v180209 classification definitions) Method: clinical testing	not specified Affected status: unknown Allele origin: germline	Eurofins Ntd Llc (ga) Accession: SCV000111537.8 First in ClinVar: Jan 17, 2014 Last updated: Dec 15, 2018	Other databases http://www.egl-eurofins.com/emvc… http://www.egl-eurofins.com/emvclass/emvclass.php?approved_symbol=DHCR7 Number of individuals with the variant: 29 Sex: mixed
Benign (Mar 21, 2016)	criteria provided, single submitter (LMM Criteria) Method: clinical testing	not specified Affected status: not provided Allele origin: germline	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine Accession: SCV000966288.1 First in ClinVar: Aug 26, 2019 Last updated: Aug 26, 2019	Comment: p.Asn146Asn in exon 6 of DHCR7: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, … (more) p.Asn146Asn in exon 6 of DHCR7: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 94.35% (62491/66236) of European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac. broadinstitute.org; dbSNP rs949177). (less) Number of individuals with the variant: 1
Benign (Mar 06, 2018)	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000373921.3 First in ClinVar: Dec 06, 2016 Last updated: May 31, 2020	Comment: This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated … (more) This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. (less)
Benign (Jul 01, 2021)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: no Allele origin: germline	Genome-Nilou Lab Accession: SCV001749263.1 First in ClinVar: Jul 14, 2021 Last updated: Jul 14, 2021	Sex: mixed
Benign (Oct 05, 2021)	criteria provided, single submitter (ARUP Molecular Germline Variant Investigation Process 2021) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: germline	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories Accession: SCV000603307.5 First in ClinVar: Dec 06, 2016 Last updated: Jan 08, 2022
Benign (Mar 11, 2016)	criteria provided, single submitter (Ambry Variant Classification Scheme 2023) Method: clinical testing	Inborn genetic diseases Affected status: unknown Allele origin: germline	Ambry Genetics Accession: SCV000846090.5 First in ClinVar: Nov 08, 2018 Last updated: May 01, 2024	Comment: This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation … (more) This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. (less)
Benign (-)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: not provided	not provided (Autosomal recessive inheritance) Affected status: yes Allele origin: germline	Breakthrough Genomics, Breakthrough Genomics Accession: SCV005232197.1 First in ClinVar: Sep 29, 2024 Last updated: Sep 29, 2024
Benign (Mar 03, 2015)	criteria provided, single submitter (GeneDx Variant Classification Process June 2021) Method: clinical testing	Not Provided Affected status: yes Allele origin: germline	GeneDx Accession: SCV001888903.1 First in ClinVar: Sep 26, 2021 Last updated: Sep 26, 2021
Benign (Aug 02, 2021)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: unknown	Fulgent Genetics, Fulgent Genetics Accession: SCV002805088.1 First in ClinVar: Dec 31, 2022 Last updated: Dec 31, 2022
Benign (Feb 01, 2024)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV001729861.4 First in ClinVar: Jun 15, 2021 Last updated: Feb 20, 2024
Benign (-)	no assertion criteria provided Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: yes Allele origin: germline	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen Study: VKGL Data-share Consensus Accession: SCV000733108.1 First in ClinVar: Apr 09, 2018 Last updated: Apr 09, 2018
Benign (-)	no assertion criteria provided Method: clinical testing	not specified Affected status: yes Allele origin: germline	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ Additional submitter: Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen Study: VKGL Data-share Consensus Accession: SCV001956997.1 First in ClinVar: Oct 02, 2021 Last updated: Oct 02, 2021
Benign (May 05, 2017)	no assertion criteria provided Method: clinical testing	Smith-Lemli-Opitz syndrome Affected status: unknown Allele origin: germline	Natera, Inc. Accession: SCV002093054.1 First in ClinVar: Apr 23, 2022 Last updated: Apr 23, 2022
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Comment:

p.Asn146Asn in exon 6 of DHCR7: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 94.35% (62491/66236) of European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac. broadinstitute.org; dbSNP rs949177).

Comment:

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.

Comment:

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

Citations for germline classification of this variant

Title	Author	Journal	Year	Link
http://www.egl-eurofins.com/emvclass/emvclass.php?approved_symbol=DHCR7	-	-	-	-

Text-mined citations for rs949177 ...

These citations are identified by LitVar using the rs number, so they may include citations for more than one variant at this location. Please review the LitVar results carefully for your variant of interest.

Record last updated Nov 10, 2024

ClinVar Genomic variation as it relates to human health

NM_001360.3(DHCR7):c.438T>C (p.Asn146=)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for rs949177 ...